Abstract
G.J. Simmons has advanced the concept of using authentication in an open channel to actually convey information. We review the use of the knapsack problem for public codes and explore the use of Shamir's method for a signature only knapsack to convey messages.
Publication Details
Seberry, J, A subliminal channel in codes for authentication without secrecy, Ars Combinatoria, 19A, 1985, 37-41.